(Added by Ordinance No. 180372; amended by Ordinance 180671, effective January 12, 2007.) Effective July 1, 2007, in the 122nd Avenue subdistrict of the East Corridor plan district, all fuel vendors established under the provisions of Subsection 33.521.300. F. of Title 33, Planning and Zoning, must sell a minimum blend of 20% Biodiesel (B20 fuel) at one or more pumps.